Add support for defaulting to low quality image interpolation.

third_party/WebKit/Source/config.gni

Index: third_party/WebKit/Source/config.gni
diff --git a/third_party/WebKit/Source/config.gni b/third_party/WebKit/Source/config.gni
index e8e0050bbbc2ce22efe65730f5cb87dbb85479a1..79f64bee591511a14ededfe56dbb42143059464d 100644
--- a/third_party/WebKit/Source/config.gni
+++ b/third_party/WebKit/Source/config.gni
@@ -28,6 +28,9 @@ declare_args() {
   # If true, enables blink logging macros (WTF_LOG and friends) unconditionally.
   # When false, blink logging macros are enabled only if assertions are enabled.
   blink_logging_always_on = false
+
+  # If true, defaults image interpolation to low quality.
+  use_low_quality_image_interpolation = false

[Dirk Pranke, 2016/04/07 19:46:23]

Does it make sense to default this to "= is_android" ?

[nyquist, 2016/04/07 20:29:18]

That makes total sense to me. I'm assuming you also want to remove "is_android"
below as well then.

 }
 
 # Whether Android build uses OpenMAX DL FFT. Currently supported only on
@@ -66,9 +69,11 @@ if (!is_android || use_aura) {
   feature_defines_list += [ "ENABLE_INPUT_MULTIPLE_FIELDS_UI=1" ]
 }
 
-if (is_android) {
+if (is_android || use_low_quality_image_interpolation) {
   feature_defines_list += [ "WTF_USE_LOW_QUALITY_IMAGE_INTERPOLATION=1" ]
-} else {
+}
+
+if (!is_android) {
   feature_defines_list += [
     "WTF_USE_ICCJPEG=1",
     "WTF_USE_QCMSLIB=1",